Quality Assurance and Quality Control of the First Domestic Medical Accelerator Image
Guidance System: EPID
CHENG Changhai1, YAN Qinghua1, GUO Hongtao1, LI Dingjie2, SONG Yingxin3
1. Department of Radiotherapy, Zhoukou Central Hospital, Zhoukou Henan 466000, China;
2. Department of Radiotherapy, The Tumor Hospital Affiliated to Zhengzhou University, Zhengzhou Henan 450000, China;
3. Shandong Shinva Medical Devices Co., Ltd., Zibo Shandong 255086, China
Abstract：Objective To study the quality assurance content scheme and quality control test method of domestic accelerator image
guidance system: EPID. Methods The secure collision chain, system motion, geometric accuracy, registration accuracy, and image
quality of the image guidance system: EPID were verified using verification phantoms and tools. Results The safety chain and
system movement of EPID were normal. The errors of geometric accuracy, registration accuracy, and imaging quality were ≤±2 mm or
better than the manufacturer’s recommended standards and requirements. Conclusion By selecting the appropriate quality assurance and
quality control of EPID, it can play an important role in the auxiliary position verification position in clinical radiotherapy.
程长海1，闫清华1，郭洪涛1，李定杰2，宋迎新3. 国产首台医用加速器图像引导系统（EPID）的质量保证与质量控制[J]. 中国医疗设备, 2019, 34(10): 23-26.
CHENG Changhai1, YAN Qinghua1, GUO Hongtao1, LI Dingjie2, SONG Yingxin3. Quality Assurance and Quality Control of the First Domestic Medical Accelerator Image
Guidance System: EPID. China Medical Devices, 2019, 34(10): 23-26.
